Crayon pencil



Patented June 9, 1942 UNITED STATES PATENT OFFICE CRAYON PENCIL Oscar Henry Tweeten, Chicago, Ill.

Application May 3, 1940, Serial No. 333,174

(Cl. 1Z0-13) Claims.

This invention relates to a `relatively large crayon pencil of which a pencil for marking bowling scores is typically illustrative.

Usually bowling scores are marked with a re1- atively large colored crayon in which the crayon is either entirely unwrapped or wrapped only with a thin sheet of paper and which causes the crayon to soil the hands and also to waste considerable crayon by reason of the fact that when a substantial part of the crayon is still unused that it is not suiciently long to use the same conveniently.

It is, therefore, an object of my invention to employ a pencil which utilizes a holder or casing for the crayon so that the hand of the scorekeeper will notbe soiled by not coming in Contact with the crayon, and in which the crayon will project from the casing with means for extending the projection of the crayon beyond the end of the casing as the crayon is consumed in the operation of scoring.

Pencils having means for protruding the lead from a casing are old per se, but in the case of the usual lead pencil the lead is relatively narrow in diameter and, therefore, various devices are utilized to press against this narrow lead and thus to eject the lead from the pencil casing, this usually being done by means of a groove located somewhere in the center of the pencil casing. For a' relatively large crayon, such as the crayon marker for bowling scores, however, it is not possible to utilize the device in common practice for ordinary pencils and, consequently, not until the present invention did it seem feasible to have a large crayon encased to form a pencil.

The aforesaid and other objects will more readily appear from an inspection of the drawing, in which- Figure 1 is a, perspective of my pencil attached by means of a chain to a bowling score board;

Figure 2 is a cross-section of the pencil taken on the lines 2 2 of Figure 1;

Figure 3 is a cross-section taken on lines 3-3 of Figure 2; 1 g

Figure 4 is a cross-section taken on the lines 4 4 of Figure 2;

Figure 5 is a perspective of the inside stem member of the pencil; and

Figure 6 is a perspective of a plunger for cooperative action within the stem member 5.

In the Various figures I represents a frame to which by the chain 2 is attached the pencil 3, the last link of the chain being attached to the pencil by means of the pin 4 located transversely in the head 5 of the pencil casing.` 6 is a collar 55 having threads 1 for cooperative action with internal threads of the casing, the said collar being journaled on the upper portion 8 on the stem member (Fig. 5), and resting on the shoulder 9 of the said stem member which serves as a seat for the collar Ii. I0 is the slot in the upper portion 8 of the stem member to receive the pin 4. II is the central portion of the inside stem member. I2 is the lower portion of said stem member. I3 is a, slot in said stem member, I4 a second slot in the circumference of said stem member opposite said rst mentioned slot, I5 a circular opening at the head of said slot I4. It will be noted that the lower portion I2 of the stem member is tapered inwardly and thus serves to hold the crayon by frictional contact. I6 is the circumference of the plunger as shown in Figure 6, and I'I are outwardly projecting ears, I8 is the casing of the pencil made of some composition, such as Bakelite or the like. I9 is the inwardly tapering end of the pencil casing and 20 is the internal spiral groove in the said casing.

I will now describe the operation of my improved pencil. The plunger member (Fig. 6) is of a diameter that it will readily be insertable in the stem member (Fig. 5) with the ears II projecting out of the slot I3. This plunger member is pushed up in the stem member until its top portion rests against the collar member 6. The crayon member is then inserted in the stem member (Fig. 5) and is held in place frictionally by the yieldable end portions I2 of said stem. The stem with the head 5 thereto rigidly attached and with the crayon in place is then inserted in the casing at the end opposite to its tapered portion. The threaded portion I of the collar will then be cooperatively engaged with the inner thread portion at the top of the casing and the same will securely hold the stem with the head portion 5 to the casing I8. The lugs or ears I1 will fit into the internal spiral 20 of the casing I8, and as the plunger member descends by reason of the coaction between the ears or lugs I1 and the descending internal spiral 20, the plunger will press against the crayon 2| and force the same to protrude from the tapered opening I9 of the casing, as shown at 2l. When the end of the crayon is consumed in writing the turning of the head portion 5 in clocklike dirction will force the crayon to protrude further and further from the tapered opening I9 of the easing. This will be continued until the plunger member is extended downwards to the point where the lugs or ears I 1 come to the end of the internally threaded spiral of the casing. By then turning the head in counter-clock direction, the pencil can be disassembled and a new crayon inserted.

It will be noted that the construction of the stem member illustrated in Figure 5 by reason of the slots and a slight tapering inwardly at the end of said stem member, as indicated at I2, will cause frictional contact so as to prevent the crayon from becoming disassociated from the holder.

It will be understood that changes in detail may be made without departing from the spirit and the scope of my invention and I do not limit myself to the specific embodiments shown or described, but what I desire to obtain by Letters Patent is as follows:

1. A crayon pencil comprising a casing having an internal spiral groove, a tubular member adapted to hold a crayon having one end of smaller diameter and forming a seat for a rotatable collar, a head located on saidV end of said tubular member, means for rigidly securing said head member to said tubular member, said means also serving as an anchoring member for a chain for attaching said pencil securely to a fixed object.

2. A crayon pencil comprising a casing having an internal spiral groove, a head rigidly attached to a tubular member provided with means for frictionally holding a crayon and for having inserted therein a plunger with ears for cooperation in said ,spiral groove, a collar removably secured to the end of said casing and rotatable with reference to said head, said rotatable collar located on an annular seat formed by one end portion of said tubular member which is of lesser diameter.

3. A crayon pencil comprising a tubular member for irictionally holding a crayon and adapted to have inserted therein a plunger member provided With ears for cooperation with internal Cil grooves in a casing, said tubular member having an extension of lesser diameter and serving as a seat for a swivel collar, said extension thereof having rigidly secured thereto a head, said swivel collar adapted to be threadedly secured to the casing.

4. A crayon pencil comprising a casing having an internal groove, a tubular member for insertion therein provided with slots for frictionally holding a crayon and having an extension of lesser diameter forming an annular seat, apertures in said extension for insertion therethrough oia pin for securing rigidly a head to said extension, a rotatable collar located on said seat adjacent to, and held thereon by, said head, said collar being externally threaded for detachably securing the same to the internally threaded end portion of said tubular member, and a plunger member adapted to be inserted vin said tubular member provided With ears for projecting beyond the'slots thereof and for cooperation with the groove in the casing.

5. A crayon pencil comprising a casing having an internal spiral groove, a tubular member within said casing adapted to hold a crayon, a head rigidly secured to said tubular member, a longitudinal slot in said tubular member, a plunger having laterally projecting ears adapted to be inserted vwithin said tubular member, with said ears projecting laterally from said slot and adapted to travel in said spiral groove, said tubular member having an extension of lesser diameter forming an annular seat and a swivel Vcollar on said seat having threads for detachable connection With the casing and being rotatable in relation to said head located at the end of the extension of said tubular member.

oso-AP. HENRY TWEETEN. 

